In this book, the writer indicated that: If the reward I could get for the ordeals I faced in my life was to write such a book, then this reward would be enough consolation for me, but the real price I received in advance in payments on account. Philosophy freed me from the grip of sad passions, instincts of decadence, motives for death, and from all diseases of being, such as horror, boredom, complaining, greed, remorse, guilt, and nostalgia, and thus gave me the ability to grow and live. I feel now well enough to learn the lessons, and here are some of my papers. Before starting: I spread joy at the gates of cemeteries.. This is my craft.